Electro-optical device and electronic device

Included are: a semiconductor layer including a drain region, a channel region, and a second LDD region between the drain region and the channel region; a gate electrode disposed overlapping the channel region; a gate wiring line electrically coupled to the gate electrode; and a second light shielding portion disposed between the second LDD region and the gate wiring line and overlapping the second LDD region and the gate wiring line in plan view.